Imagine wheeling the Big Dog Purse into your favorite restaurant

No fair. Your friends' Yorkies and other lapdogs get to tag along inside fancy purses. Yet your dog is so big that Fido has to walk when the two of you run errands together.

Problem solved: Local advertising agency Carmichael Lynch has created a giant purse on wheels capable of toting around dogs as big as 120 pounds.

While the creation of the Big Dog Purse was meant to be a spoof of dog owners who carry tiny dogs in their handbags, communications manager Maria Hileman says the company has been getting requests to send the prototype to market.

"There's been a demand," she says. "For now, it's up in the air."

Hileman says the leather bag was part of a company initiative called Carmichael Collective in which colleagues create new products.